This is spot on. To me, Voy and some of ENT was sooo much like TNG...just with different crews, i.e. going from one planet to the next...meeting humans with funny foreheads...I grew so damn tired of it.
In contrast, DS9 wasn't always
great, but it stayed creatively fresh and true to its "gunsmoke in space" premise.
In fact, I found many of the weaker episodes of DS9 were when it strayed
from that premise and some of the stronger episodes of Voy and ENT were when they stayed true
to their premises, which unfortunately wasn't often...